1. plainclothes - Noun
2. plainclothes - Adjective
plainclothes (not comparable)
(usually of a police officer) Wearing ordinary civilian clothes instead of a uniform, in order to avoid detection.
plainclothes (uncountable)
Ordinary civilian clothes, rather than uniform.
Ur-Fascism is still around us, sometimes in plainclothes. Umberto Eco
According to a release from Sheriff Joseph Fucito, plainclothes deputies went inside Tuesday and ordered food in exchange for a mandatory $40 “donation.” Source: Internet
Allegedly some plainclothes police have taken people off the street for discussing the pandemic. Source: Internet
A demonstration in the centre was being forcibly dispersed when a bystander named Benno Ohnesorg was shot in the head and killed by a plainclothes policeman. Source: Internet
District security forces, uniformed police, and plainclothes officers dragged protesters away from the embassies. Source: Internet
A narcotics investigation was underway in the area, involving a plainclothes police officer and an unmarked car. Source: Internet